I’m thinking we should move to South Carolina. No, not me and the family. The whole city of Yonkers. In June 2008, longtime Yonkers manufacturer Stewart EFI left the city, taking with it a few hundred manufacturing jobs. Then, a few weeks ago, the Precision Valve Corporation, one of Yonkers’s largest employers and a company founded in the city, announced that it was moving to the Palmetto State. Precision Valve vice president Bob Reto explained the relocation delicately: “The decision was driven by the need to operate under the greater efficiencies afforded in South Carolina.” Mayor Phil Amicone, by contrast,...